US Bridges

South Airport RD over Elkhorn River Trib

GoodPosted for load

Madison County, Nebraska · 3S 1.5W of Norfolk · Structure no. C005901830

Built
1993
32 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
270
1998 count
Owner
County
County Highway Agency

About this bridge

South Airport RD over Elkhorn River Trib is a steel stringer/multi-beam or girder carrying South Airport RD over Elkhorn River Trib in Madison County, Nebraska. It was built in 1993, so it is 32 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 270 vehicles a day, projected to reach 270 by 2033. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesSouth Airport RD
CrossesElkhorn River Trib
Location3S 1.5W of Norfolk
RouteCounty Highway 7702
CountyMadison County
StateNebraska
Coordinates41.9746, -97.4574
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating15.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (1998)
Projected traffic270 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was South Airport RD over Elkhorn River Trib built?

It was built in 1993, making it 32 years old in 2025.

What condition is South Airport RD over Elkhorn River Trib in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does South Airport RD over Elkhorn River Trib carry?

About 270 vehicles per day (1998 count).

How long is South Airport RD over Elkhorn River Trib?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 29 ft wide.

Who owns South Airport RD over Elkhorn River Trib?

It is owned by the County Highway Agency.